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- Jonsén, Pär (author)
- Konferens i mineralteknik 2010 : 02/02/2010 - 03/02/2010
Prediction of mill structure behaviour in a tumbling mill
- E-bookEnglish2010
Publisher, publication year, extent ...
- LuleåLuleå tekniska universitet2010
Numbers
- LIBRIS-ID:22195203
- http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-39835uri
- urn:nbn:se:ltu:diva-39835urn
- ebaf1560-5950-11df-b6eb-000ea68e967b
Supplementary language notes
- Language:English
Part of subdatabase
Notes
- Godkänd; 2010; 20100506 (parj)
- gratis
- Computational demands and the lack of detailed experimental verification have limited the value of Distinct Element Method (DEM) modelling approaches in mill simulation studies. This paper presents the results of a study in which the deflection of a lifter bar in a pilot ball mill is measured by an embedded strain gauge sensor and compared to deflections predicted from finite element (FE) simulations. The flexible rubber lifter and the lining in a tumbling mill are modelled with the finite element method (FEM) and the grinding medium modelled with DEM. The deflection profile obtained from DEM-FE simulation shows a reasonably good correspondence to pilot mill measurements. To study the charge impact on the mill structure two different charges are used in the simulations. The approach presented here is a contribution to the validation of DEM-FE simulations and an introduction to the description of a bendable rubber lifter implemented in a DEM-FEM mill model. It opens up the possibility to predict contact forces for varying mill dimensions and liner combinations. FEM is especially valuable in this case, since there are readily available libraries with material models. This is a follow-up work to previous preliminary result from a mono-size ball charge interaction study.
Subject headings and genre
- Engineering and Technology hsv
- Mechanical Engineering hsv
- Applied Mechanics hsv
- Teknik och teknologier hsv
- Maskinteknik hsv
- Teknisk mekanik hsv
- Engineering and Technology hsv
- Materials Engineering hsv
- Metallurgy and Metallic Materials hsv
- Teknik och teknologier hsv
- Materialteknik hsv
- Metallurgi och metalliska material hsv
- Hållfasthetslära ltu
- Solid Mechanics ltu
- Mineralteknik ltu
- Mineral Processing ltu
Added entries (persons, corporate bodies, meetings, titles ...)
- Pålsson, Bertil (author)
- Tano, Kent (author)
- Berggren, Andreas (author)
- Luleå tekniska universitetInstitutionen för teknikvetenskap och matematik (publisher)
- Luleå tekniska universitetInstitutionen för samhällsbyggnad och naturresurser (publisher)
- Luleå tekniska universitetInstitutionen för samhällsbyggnad och naturresurser (publisher)
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- In:VärdpublikationConference in Minerals Engineering85-989789174390971
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